Outage Management System (OMS)

Leverages real-time data from SCADA, AMI, and Intelligent Electronic Devices (IEDs) to algorithmically predict the most probable location of a fault. The system correlates customer trouble calls with Distribution System State Estimation outputs and protection device operations. Advanced implementations use impedance-based methods and traveling wave analysis to estimate distance-to-fault, dramatically reducing patrol time for line crews.

Automates the assignment and routing of field crews based on skill set, proximity, and real-time traffic conditions. The OMS maintains a roster of available personnel, their certifications for specific equipment, and current GPS locations. Integration with mobile workforce management (MWM) platforms enables digital job ticket creation, turn-by-turn navigation, and real-time status updates from the field back to the control center.

Provides a unified operational dashboard visualizing the lifecycle of every active outage event. Key stages tracked include:

• Fault Isolation: Confirmation that protective devices have cleared the faulted segment.
• Service Restoration (SR): Execution of switching orders to re-energize healthy feeder sections via alternate sources.
• Cold Load Pickup (CLPU) Monitoring: Tracking the inrush demand surge as thermostatic loads restart simultaneously. Estimated Time of Restoration (ETR) is continuously recalculated using machine learning models trained on historical crew performance and weather data.

Interfaces directly with the Advanced Metering Infrastructure (AMI) head-end system to receive 'last gasp' and 'power up' notifications. When a smart meter loses power, it transmits a final signal indicating the outage. The OMS aggregates these individual meter events to precisely define the outage polygon boundary, eliminating reliance on customer phone calls. This enables ping-based verification to confirm restoration before closing the outage ticket.

Digitizes the entire lifecycle of a switching procedure, from creation to execution and archival. The module enforces radiality constraints and performs a safety interlock check to prevent dangerous backfeeds or paralleling of sources. Integration with Distribution Automation (DA) systems allows for remote execution of switching steps via SCADA, while maintaining a rigorous audit trail for compliance with NERC operating standards.

Automatically calculates key reliability indices directly from the outage event database, eliminating manual spreadsheet reconciliation. The system computes:

• SAIDI (System Average Interruption Duration Index)
• SAIFI (System Average Interruption Frequency Index)
• CAIDI (Customer Average Interruption Duration Index) These metrics can be segmented by feeder, substation, or regulatory zone to identify worst-performing circuits and prioritize predictive maintenance investments.